irc: add Matrix information

There is now a bridge

Author: bagder

docs/_irc.html

@@ -12,44 +12,66 @@
 #include "_menu.html"
 #include "setup.t"
 
-WHERE2(Docs, "/docs/", IRC)
+WHERE2(Docs, "/docs/", chat)
 
 <div class="relatedbox">
 <b>Related:</b>
 <br><a href="manpage.html">curl man page</a>
 <br><a href="tutorial.html">Tutorial</a>
 </div>
 
-TITLE(IRC - chat with curl enthusiasts)
+TITLE(Chat with fellow curl enthusiasts)
 <p>
  We have an always-open never-sleeping 24/7 chat room available to discuss any
  and all curl and libcurl related topics whenever you want.
 
-<p> You find us in the <b>#curl</b> channel on the <b>Libera.Chat IRC</b> network.
-
 <p> This is the only official curl chat. You will find that some of the curl
  core team developers frequent this chat.
 
-SUBTITLE(How to join)
+SUBTITLE(Participate)
+<ul>
+
+<li> IRC: Join the channel <b>#curl</b> on the network <b>Libera.Chat</b>.
+  Check out the <a href="https://libera.chat/guides/clients">comprehensive
+  guide</a> how to use the network.
+
+<li> Matrix: alternatively, you join the Matrix
+  channel <b><a href="https://matrix.to/#/#curl:curl.se">#curl:curl.se</a></b>,
+  which is bridged to the IRC channel and using this you can participate in
+  the same
+  communications. <a href="https://matrix.org/docs/chat_basics/public-rooms/">Learn
+  how to</a>.
+
+</ul>
+
+Neither of those methods require any invite or human intervention. Just show
+up.
 <p>
-  Libera.Chat offers a <a href="https://libera.chat/guides/clients">comprehensive guide</a>
-  regarding various ways on joining the network.
+  
+Neither method requires that you reveal your real name, actual identity, where
+are located, or any other personal information. You decide what you are called
+and what you want to share.
 
-SUBTITLE(How to speak)
+SUBTITLE(Speak)
 <p>
- You will notice that you must "register" your nick name first on the network
- to be allowed to talk in the channel. This is an unfortunate anti-spam and
- anti-abuse measurement.
+  Be friendly and polite. We prefer curl oriented topics and subjects, but we
+  are also tolerant and open for excursions into related areas of technology
+  and development.
+
 <p>
- The good part is
- that <a href="https://libera.chat/guides/registration">it is easy to
- register</a>.
+  The chat room is often visited by 200 or more concurrent participants - many
+  of them idling for the moment.
 
+<p>
+  Joking is fine, but do it with respect for your fellow chat pals. We operate
+  under a <a href="code-of-conduct.html">code of conduct</a>.
+  
 SUBTITLE(What if nobody responds)
 <p>
   There is no guarantee anyone wants to respond or that anyone who reads right
   now even knows the answer to your question. Consider maybe post your
-  questions or thoughts on a <a href="/mail/">suitable mailing list?</a>
+  questions or thoughts on a <a href="/mail/">suitable mailing list?</a> or
+  <a href="https://github.com/curl/curl/discussions">GitHub discussions</a>?
 
 SUBTITLE(Screenshot)
 <p>